Ontario Contractor Verification - Page 11

918 contractors checked against 6 data sources (Page 11 of 19)

918

Total Contractors

879

Active Licenses

44

Federal Records

Ontario Contractors

Showing contractors 501-550 of 918

K & D LANDSCAPE INC

Clear

License #1032430 · C27

Active

K & Z CABINET CO INC

Clear

License #319196 · C-6

Active

K A R CONSTRUCTION INC

Clear

License #595709 · B

Active

K N J M CHILLER SERVICES INC

Clear

License #1014147 · C38

Active

K P CONSTRUCTION CO INC

Clear

License #790555 · B

Active

KAO BRIAN YAWCHING

Clear

License #897876 · B

Active

KEMCORP CONSTRUCTION INC

Clear

License #934522 · A

Active

KENNEDY STEEL

Clear

License #1086611 · C51

Active

KINGDOM FLOORING

Clear

License #964588 · C15

Active

KISBA CONTRACTING INC

Clear

License #1021128 · B

Active

KISMET CONSTRUCTION COMPANY INC

Clear

License #893342 · B

Active

KLEAR SAND

Clear

License #1040426 · C53

Active

KLONDIKE ROOF CONSTRUCTION SERVICE

Clear

License #990645 · ASB

Active

KOR GLASS AND DOOR

Clear

License #1097600 · C17

Active

KORMEX CONSTRUCTION INC

Clear

License #1073142 · A

Active

KP BUILDERS

Clear

License #983861 · B

Active

KRAEMER KLAUS NORBERT

Clear

License #529570 · B

Active

KRAUS GLENN FABRICATION

Clear

License #637291 · C51

Active

L D M CONSTRUCTION SERVICES

Clear

License #957993 · B

Active

L M I

Clear

License #471010 · C17

Active

L R MASONRY INC

Clear

License #1061476 · C29

Active

LA BARGE J P CONSTRUCTION MANAGEMENT

Clear

License #760763 · B

Active

LANDEROS CONSTRUCTION GROUP

Clear

License #770655 · B

Active

LAPOS ALEXANDRU

Clear

License #828822 · C-6

Active

LASSITER CONSTRUCTION

Clear

License #758267 · B

Active

LE DAO

Clear

License #864673 · C20

Active

LEE KEN

Clear

License #1138718 · B

Active

LEE MICHELLE CONSTRUCTION

Clear

License #1065785 · B

Active

LEE'S GENERAL CONSTRUCTION CORP

Clear

License #1056618 · B

Active

LEGEND CONSTRUCTION SERVICES INC

Clear

License #1038753 · B

Active

LEOS GENERAL CONSTRUCTION INC

Clear

License #1121580 · B

JDG Entity Susp

LEOTHACUE ENTERPRISES INC

Clear

License #1025024 · A

Active

LI CHUN

Clear

License #1054025 · C20

Active

LIFE BUILDERS

Clear

License #842842 · B

Active

LIGHTHOUSE CONSTRUCTION & REMODEL

Clear

License #986212 · B

Active

LIGTENBERG MARK

Clear

License #464429 · C10

Active

LINX CONSTRUCTION INC

Clear

License #1079357 · B

Active

LIU LEO HAO

Clear

License #1101645 · B

Active

LLOYD ELECTRIC

Clear

License #622258 · C10

Active

LOS ANGELES FENCING CO

Clear

License #1068198 · C13

Active

LOW VOLT INC

Clear

License #1059192 · C-7

Active

LOZANO MARBLE GRANITE & TILE

Clear

License #1099858 · C54

Active

LS CONSTRUCTION

Clear

License #1118857 · B

Active

LSSI LLC

Clear

License #1016641 · C10

Active

LUCIO'S LANDSCAPING INC

Clear

License #1120877 · C27

Active

LUIS DRYWALL

Clear

License #1027740 · C-9

Active

LUJANO ELECTRIC

Clear

License #1102594 · C10

Active

LUNA'S GARAGE DOORS INC

Clear

License #1064893 · D28

Active

LVL CONSTRUCTION INC

Clear

License #1077369 · B

Active

LYDEN ELECTRIC

Clear

License #909209 · C10

Active

How to Verify a Contractor in Ontario

Manual contractor vetting takes 45+ minutes per sub and still misses violations in databases you don't know exist. SiteVetter runs 6 data source checks in seconds: CSLB license status, SAM.gov federal debarment, DOL wage violations, OSHA safety citations, EPA environmental records, and building permits.

Contractors in Ontario serve local residential and commercial construction needs.

Of the 918 CSLB-registered contractors in Ontario, 96% hold active licenses and 44 have at least one record in federal databases. Under California's "Controlling Employer" doctrine, general contractors can be held liable for subcontractor safety violations—making verification a legal necessity, not optional due diligence.

5-Point Verification Checklist for Ontario Contractors

  • CSLB License: Confirm Active status (not Suspended, Revoked, or Expired)
  • Workers' Comp: Verify current coverage—exempt status means no employees
  • Contractor Bond: California requires $25,000 minimum (SB 607, Jan 2023)
  • Federal Debarment: Search SAM.gov for exclusion records
  • Safety & Wage History: Check OSHA citations and DOL wage violations

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.